Xathrya Sabertooth

Cheat Engine Tutorial: Tutorial v3 – Stage 6
Cheat Engine Tutorial: Tutorial v3 – Stage 5
Cheat Engine Tutorial: Tutorial v3 – Stage 4
Cheat Engine Tutorial: Tutorial v3 – Stage 3
Cheat Engine Tutorial: Tutorial v3 – Stage 2
Cheat Engine Tutorial: Tutorial v3 – Stage 1

Cheat Engine Tutorial: Tutorial v3 – Stage 6

Posted: 04 Aug 2013 08:55 PM PDT

We have seen Cheat Engine on previous introduction. As said on that article, Cheat Engine has provide a “cheat me” program to let us practice using Cheat Engine. Officially it is called Cheat Engine Tutorial. In this article we will use Cheat Engine and practice in “cheating” the program. Specifically, we will do the “sixth stage”.

In this article I use:

Windows 8 64-bit
Cheat Engine 6.3
Cheat Engine Tutorial v3

Prerequisite

At least you understand the basic layout of Cheat Engine. You should know how to load a running process to Cheat Engine. If you don’t, please refer back to the introduction.

Open the Cheat Engine Tutorial v3

If you get to this article after beat the fifth stage, make sure you clear the previous result by click on ‘New scan‘ and clear work area.

Some of this article will involve assembly language. Even though it is not a requirement, but knowing some assembly will ease you. You can learn assembly at my Assembly Language Tutorial page or watching Assembly Language Primer Video for Hackers.

Password

Every stage can be accessed individually. To access this stage from Cheat Engine Tutorial’s main window, enter 013370 to password line edit.

Hint

Dark Byte (Cheat Engine creator) wrote this as hint:

  Code injection is a technique where one injects a piece of code into the target process, and then reroute  the execution of code to go through your own written code    In this tutorial you'll have a health value and a button that will decrease your health with 1 each time  you click it. Your task is to use code injection to increase the value of your health with 2 every time  it is clicked    Start with finding the address and then find what writes to it.  then when you've found the code that decreases it browse to that address in the disassembler, and open  the auto assembler window (ctrl+a)  There click on template and then code injection, and give it the address that decreases health (If it  isn't already filled in correctly)  That will generate a basic auto assembler injection framework you can use for your code.    Notice the alloc, that will allocate a block of memory for your code cave, in the past, in the pre  windows 2000 systems, people had to find code caves in the memory(regions of memory unused by the game),  but that's luckily a thing of the past since windows 2000, and will these days cause errors when trying  to be used, due to SP2 of XP and the NX bit of new CPU's    Also notice the line newmem: and originalcode: and the text "Place your code here"  As you guessed it, write your code here that will increase the  health with 2.  a usefull assembler instruction in this case is the "ADD instruction"  here are a few examples:  "ADD [00901234],9" to increase the address at 00901234 with 9  "ADD [ESP+4],9" to increase the address pointed to by ESP+4 with 9  In this case, you'll have to use the same thing between the brackets as the original code has that  decreases your health    Notice:  It is recommended to delete the line that decreases your health from the original code section, else  you'll have to increase your health with 3 (you increase with 3, the original code decreases with 1, so  the end result is increase with 2), which might become confusing. But it's all up to you and your  programming.    Notice 2:  In some games the original code can exist out of multiple instructions, and sometimes, not always, it  might happen that a code at another place jumps into your jump instruction end will then cause unknown  behavior. If that happens, you should usually look near that instruction and see the jumps and fix it,  or perhaps even choose to use a different address to do the code injection from. As long as you're able  to figure out the address to change from inside your injected code.

Solution

Information we got from the hint:

We can change game logic
objective: everytime the button clicked, our HP is increased by 2 instead of decreased

Like always, get the address of value. I think we have cover it everytime so let’s skip and assume you have found the address, add it to working area. Right-click on it and choose “Find out what writes to this address”.

Cheat Engine might ask your confirmation to attach a debugger, this is our intention so if it asks you just confirm agree. After pressing the button, you will see a debugger window.

Go to Cheat Engine Tutorial and press ‘Hit me’. Go back to Cheat Engine debugger and find whether our list has been populated. Here we have one or more entries. Choose the first one. As seen from this picture, my entry is an instruction FF 8B 88070000 – dec [rbx+00000788] on address 100030142.

Press ‘Show disassembler’ button. A new window appears. It will gives us a window full of assembly language program and hexadecimal code. The first table is disassembler, list every operation in assembly language. We are now stop at the top instruction. Following it is a hex dumping, viewing the memory in hexadecimal format.

Make sure you highlight the code for decrement (it should be highlighted by default).

Now click Tools and then click Auto assemble. Alternatively you can press Ctrl +A. A new window appear, something like a simple editor.

Now, click Template and click “Code Injection”. Code Injection is operation allow us alter the program logic by reroute the flow control. Cheat Engine can inject a new jump to the running application when the execution reach certain address. In the destination address, we will then create a chunk of instruction which will be executed when the flow arrive.

When a confirmation dialog shown, just press OK. Basically it will ask you where we will jump when the execution reach this address. Any code is find, Cheat Engine will take care the job for creating a code for memory allocation etc. Now we have something like this:

Now we have some section here. The first block is allocation and initialization, done by Cheat Engine. Don’t touch this, I highly warn you. The next is a label newmem. This will be the place where we place our code. The next is originalcode, it has function like implied by name. Later is exit, when the execution of this chunk end. And the final block is taken care by Cheat Engine.

Copy the line after label original code.

Now there is two different path we can take but both accomplice the same objective. Let’s see the first path.

We know that in assembly language, opcode dec is used to decrease the operand (register / memory address) by 1. What should we do if we want the resultant is increased by 2 instead of decreased by one? OK, we have opcode add which can use. Now let’s do some math here. X – 1 = 2, what is X? Yes, it’s three. So we should add 3 first before the code is subtracted by 1. Replace line started by // with following code:

add [rbx+00000788], 3

OK, where do I find magic number 00000788? See the dec line, you got what you need.

OK, it’s fun doing some math, but there is an easier way. Now let’s find out the second method.

Delete the line started with dec opcode. Now, instead of adding 3, you can add only 2.

add [rbx+00000788], 2

Any path you choose, it should give the same result.

Now press Execute and then go back to Cheat engine Tutorial. Press ‘Hit me’ and see your HP is raised by 2. You will also see the ‘Next’ button is now enabled. Cheers, you beat this stage!

Cheat Engine Tutorial: Tutorial v3 – Stage 5

Posted: 04 Aug 2013 05:54 PM PDT

In this article I use:

Windows 8 64-bit
Cheat Engine 6.3
Cheat Engine Tutorial v3

Prerequisite

At least you understand the basic layout of Cheat Engine. You should know how to load a running process to Cheat Engine. If you don’t, please refer back to the introduction.

Open the Cheat Engine Tutorial v3

If you get to this article after beat the fourth stage, make sure you clear the previous result by click on ‘New scan‘ and clear work area.

Password

Every stage can be accessed individually. To access this stage from Cheat Engine Tutorial’s main window, enter 098712 to password line edit.

Hint

Dark Byte (Cheat Engine creator) wrote this as hint:

  In the previous step I explained how to use the Code finder to handle changing locations. But that method  alone makes it difficult to find the address to set the values you want.  That's why there are pointers:    At the bottom you'll find 2 buttons. One will change the value, and the other changes the value AND the  location of the value.  For this step you don't really need to know assembler, but it helps a lot if you do.    First find the address of the value. When you've found it use the function to find out what accesses this  address. Change the value again, and a item will show in the list. Double click that item. (or select  and click on more info) and a new window will open with detailed information on what happened when the  instruction ran.  If the assembler instruction doesn't have anything between a '[' and ']' then use another item in the list.  If it does it will say what it think will be the value of the pointer you need.  Go back to the main cheat engine window (you can keep this extra info window open if you want, but if you  close it, remember what is between the [ and ] ) and do a 4 byte scan in hexadecimal for the value  the extra info told you.  When done scanning it may return 1 or a few hundred addresses. Most of the time the address you need will  be the smallest one. Now click on manually add and select the pointer checkbox.    The window will change and allow you to type in the address of a pointer and a offset.  Fill in as address the address you just found.  If the assembler instruction has a calculation (e.g: [esi+12]) at the end then type the value in that's  at the end. else leave it 0. If it was a more complicated instruction look at the calculation.    example of a more complicated instruction:  [EAX*2+EDX+00000310] eax=4C and edx=00801234.  In this case EDX would be the value the pointer has, and EAX*2+00000310 the offset, so the offset you'd  fill in  would be 2*4C+00000310=3A8.  (this is all in hex, use cal.exe from windows in scientific mode to  calculate)    Back to the tutorial, click OK and the address will be added, If all went right the address will show  P->xxxxxxx, with xxxxxxx being the address of the value you found. If thats not right, you've done  something wrong. Now, change the value using the pointer you added in 5000 and freeze it. Then click  Change pointer, and if all went right the next button will become visible.    extra:  And you could also use the pointer scanner to find the pointer to this address

About Pointer

This section will discuss little thing about pointer. If you think you know what pointer is, you can skip this section and head to solution section.

An object in programming is instantiation of type or class. Generally, an object is a chunk of memory that can hold data. An object has a memory address (where its data begins). In C++ for example, we know various object like integer, character, floating point number, and also object instantiated from class.

An object that holds the memory address of another object is referred as a pointer. Therefore, pointer do not hold actual data, but it “point” to another object who has the data.

Accessing a pointer will indirectly accessing the variable or value pointed by the pointer. Pointer is commonly used when we do a pass by reference when calling a function.

Let’s see some code for pointer, in C++

#include &lt;iostream&gt;  using namespace std;    int main() {      int data = 10;      int * pointer = &amp; data;      int data2 = 5;        cout &lt;&lt; "Memory location of data is " &lt;&lt; &amp;data &lt;&lt; endl;      cout &lt;&lt; "Memory location of data2 is " &lt;&lt; &amp;data &lt;&lt; endl;      cout &lt;&lt; "Pointer now point to " &lt;&lt; pointer &lt;&lt; endl;        cout &lt;&lt; endl;        cout &lt;&lt; "The data we have:" &lt;&lt; endl;      cout &lt;&lt; "data:     " &lt;&lt; data &lt;&lt; endl;      cout &lt;&lt; "data2:    " &lt;&lt; data2 &lt;&lt; endl;      cout &lt;&lt; "*pointer: " &lt;&lt; *pointer &lt;&lt; endl;        cout &lt;&lt; endl;        data = 20;        cout &lt;&lt; "The data now:" &lt;&lt; endl;      cout &lt;&lt; "data:     " &lt;&lt; data &lt;&lt; endl;      cout &lt;&lt; "data2: " &lt;&lt; data2 &lt;&lt; endl;      cout &lt;&lt; "*pointer: " &lt;&lt; *pointer &lt;&lt; endl;        cout &lt;&lt; endl;        *pointer = 30;        cout &lt;&lt; "After modification on *pointer:"&lt;&lt;endl;      cout &lt;&lt; "data:     " &lt;&lt; data &lt;&lt; endl;      cout &lt;&lt; "data2:    " &lt;&lt; data2 &lt;&lt; endl;      cout &lt;&lt; "*pointer: " &lt;&lt; *pointer &lt;&lt; endl;        pointer = &amp; data2;        cout &lt;&lt; "Memory location of data is " &lt;&lt; &amp;data &lt;&lt; endl;      cout &lt;&lt; "Memory location of data2 is " &lt;&lt; &amp;data &lt;&lt; endl;      cout &lt;&lt; "Pointer now point to " &lt;&lt; pointer &lt;&lt; endl;        *pointer = 10;        cout &lt;&lt; "After modification on *pointer:"&lt;&lt;endl;      cout &lt;&lt; "data:     " &lt;&lt; data &lt;&lt; endl;      cout &lt;&lt; "data2:    " &lt;&lt; data2 &lt;&lt; endl;      cout &lt;&lt; "*pointer: " &lt;&lt; *pointer &lt;&lt; endl;        return 0;  }

In C++, to get a memory address of an object we use operator & in front of the object. Pointer can be accessed in two different manner: accessing the address value and accessing the pointed object.

In above codes, we see pointer is initialized to point the address of data ( pointer = & data ). Remember that pointer is also an object which hold other memory location as its value. Therefore, the value of pointer is now the address of data. Accessing the address value means accessing the value of pointer. Operation means to change the address pointed by pointer ( pointer = & data2 ). After that operation, pointer point to data2, not data anymore. Another one is accessing the pointed object as if we are directly manipulate them. You can see by manipulating value of data and data2 from *pointer.

In application, pointer is used heavily, because pointer is flexible. One can use a single object or having necessary amount of object. When the object is needed, it can be manipulated by pointer in any side of memory segment.

Solution 1

Information we got from the hint:

It use pointer, one level pointer
Address of value can change each time we press button “Change pointer”

Cheat Engine might ask your confirmation to attach a debugger, this is our intention so if it asks you just confirm agree. After pressing the button, you will see a debugger window.

Go to Cheat Engine Tutorial and press ‘Change value’. Here we have one or more entries. Choose the first one. As seen from this picture, my entry is an instruction 89 02 – mov [rdx], eax on address 10002F985.

Press ‘More information’ button. A new window appears. It will gives us more information about current address and, codes in assembly language for some lines around current breakpoint. This window also display current condition of CPU registers.

Find where it says “The value of the pointer needed to find this address is probably XXXXXXXX”. For my case, it is 01103380. Basically we will find a pointer which point to, in my case 01103380.

Now close the information window and or just move it to another area of your screen. Then go back to main Cheat Engine interface and start a new scan. This time, check Hex so we will find a hexadecimal value instead of decimal. Type in the value with XXXXXXXX, whatever you got previously.

I got 1 address, a memory address points to 01103380, which is 1002C7710. We will copy the address, but we do this manually (not double clicking the entry). Press “Add address manually” button.

A new window will appear. Type in the address we got. The address for my case is 1002C7710. For offset, leave it as 0.

Press OK to finish adding. Now see the working area, there should be a new entry there, our newly created entry. The value should be the same as the other address (see the above entry). If you got “??” then you did it wrong. Try it again until you got something like this:

Try pressing “Change value” on the Cheat Engine Tutorial. Both value on our working area will change. Now change the value of entry with address “P -> XXXXXXXX” to 5000. Then, check a checkbox on column “Active” to freeze the value. Go back to Cheat Engine Tutorial and press “Change pointer”. CET will count down. If you do it right, CET will stop and the next button should be unlocked.

Cheat Engine Tutorial: Tutorial v3 – Stage 4

Posted: 04 Aug 2013 04:42 PM PDT

In this article I use:

Windows 8 64-bit
Cheat Engine 6.3
Cheat Engine Tutorial v3

Prerequisite

At least you understand the basic layout of Cheat Engine. You should know how to load a running process to Cheat Engine. If you don’t, please refer back to the introduction.

Open the Cheat Engine Tutorial v3

If you get to this article after beat the third stage, make sure you clear the previous result by click on ‘New scan‘ and clear work area.

Password

Every stage can be accessed individually. To access this stage from Cheat Engine Tutorial’s main window, enter 888899 to password line edit.

Hint

Dark Byte (Cheat Engine creator) wrote this as hint:

  Sometimes the location something is stored at changes when you restart the game, or even while you're  playing.. In that case you can use 2 things to still make a table that works.  In this step I'll try to describe how to use the Code Finder function.    The value down here will be at a different location each time you start the tutorial, so a normal   entry in the address list wouldn't work.  First try to find the address. (you've got to this point so I assume you know how to)  When you've found the address, right-click the address in Cheat Engine and choose "Find out what   writes to this address". A window will pop up with an empty list.  Then click on the Change value button in this tutorial, and go back to Cheat Engine. If everything   went right there should be an address with assembler code there now.  Click it and choose the replace option to replace it with code that does nothing. That will also add   the code address to the code list in the advanced options window. (Which gets saved if you save your   table)    Click on stop, so the game will start running normal again, and close to close the window.  Now, click on Change value, and if everything went right the Next button should become enabled.    Note: When you're freezing the address with a high enough speed it may happen that next becomes   visible anyhow

Solution

Information we got from the hint:

Address of value can change each time we press button

Again this stage is similar to our first stage, except the memory address can change.

First, find the address. The value is initialized by 100. Assume the data is 4 bytes long. Set the scan option to following:

We got so many address, let’s narrow down. Go to Cheat Engine Tutorial and press “Change value”. Remember what is the new value written there. Mine is 516. Go back to Cheat Engine and filter the address and display only the address having 516 as current value. It should be only one. Copy the entry to our working area.

Now, on the working area, right-click the entry and press “Find out what writes to this address”. You will be asked a confirmation that debugger will be attached to current process. Well, that’s our intention so click ‘Yes’. Then a new window should pop up. Let’s refer this window as debugger. The window has table, a rich text editor, and some buttons. Well, the list is still empty but we will fill it

Now go to Cheat Engine Tutorial and click “Change Value” and back to above dialog. Now you should see a new entry there. The entry has something written in assembly language. Now select that entry and click the replace button.

A new dialog will pop up. Clear the text on line editor and then press OK. Therefore, change this

Now you are brought back to debugger. Click ‘Stop’ button to stop the debugger and click ‘Close’ (the very same button) to close it.

Now go to Cheat Engine Tutorial and click Change Value. The ‘Next’ button should be unlocked now.

Cheat Engine Tutorial: Tutorial v3 – Stage 3

Posted: 04 Aug 2013 11:48 AM PDT

In this article I use:

Windows 8 64-bit
Cheat Engine 6.3
Cheat Engine Tutorial v3

Prerequisite

At least you understand the basic layout of Cheat Engine. You should know how to load a running process to Cheat Engine. If you don’t, please refer back to the introduction.

Open the Cheat Engine Tutorial v3

If you get to this article after beat the second stage, make sure you clear the previous result by click on ‘New scan‘ and clear work area.

Password

Every stage can be accessed individually. To access this stage from Cheat Engine Tutorial’s main window, enter 890124 to password line edit.

Hint

Dark Byte (Cheat Engine creator) wrote this as hint:

  In the previous tutorial we used bytes to scan, but some games store information in so called 'floating  point' notations. (probably to prevent simple memory scanners from finding it the easy way)  a floating point is a value with some digits behind the point. (like 5.12 or 11321.1)    Below you see your health and ammo. Both are stored as Floating point notations, but health is stored as  a float and ammo is stored as a double.  Click on hit me to lose some health, and on shoot to decrease your ammo with 0.5    You have to set BOTH values to 5000 or higher to proceed.    Exact value scan will work fine here, but you may want to experiment with other types too.

Solution

Information we got from the hint:

No integer, only float and double number
objective: get both values to at least 5000
Ammo can be decreased by 0.5
Health can be decreased by random value

This stage is similar to our first stage, except the number is stored as not integer. And also, we got two instead of one. One is float, another is double. But the scanning procedure is similar. We know the value.

Now set the value type to ‘Float’ and the value to 100. Click the first scan.

Well, I got 2 address. This is good enough, the narrower the result is better. On the result entries (on my case), you might see that there are value represented by 100.0 and 100. You might think that the right one is the memory which has value 100.0, aren’t you? But hold it, we can’t say it right now.

Go to Cheat Engine Tutorial and click ‘Hit me’. The health point will be decreased by random number. I got myself shot and found my HP now 98.66. Go back to Cheat Engine and see which one is changed. Now it seems our prediction is incorrect. See the changed one? That’s the one we want. Double click it to copy it to our work area.

Good! Now change the value to 5000.

Next, we need to change the ammo. Do a new scan and set the value type to ‘Double’. Set the value to 100 and click ‘First Scan’. Don’t erase the entry we made on work area, we still need it (maybe). Luckily, I got one address only.

Now go to Cheat Engine Tutorial and click ‘Fire’ to decrease the ammo value. Now let’s see if the result is the right one. My ammo is 99.5 now. Let’s go back to Cheat Engine. Bingo! The value is right, it’s also 99.5! Copy to work area.

Now, edit the ammo and set the value to 5000. Now go back to Cheat Engine Tutorial and see whether Next button is now enabled. If so, congratulation! You have beat the third stage. If not, something’s wrong. You should recheck your work. Good luck!

Cheat Engine Tutorial: Tutorial v3 – Stage 2

Posted: 04 Aug 2013 11:11 AM PDT

In this article I use:

Windows 8 64-bit
Cheat Engine 6.3
Cheat Engine Tutorial v3

Prerequisite

At least you understand the basic layout of Cheat Engine. You should know how to load a running process to Cheat Engine. If you don’t, please refer back to the introduction.

Open the Cheat Engine Tutorial v3

If you get to this article after beat the first stage, make sure you clear the previous result by click on ‘New scan‘.

Password

Every stage can be accessed individually. To access this stage from Cheat Engine Tutorial’s main window, enter 419482 to password line edit.

Hint

Dark Byte (Cheat Engine creator) wrote this as hint:

  Ok, seeing that you've figured out how to find a value using exact value let's move on to the next step.    In the previous test we knew the initial value so we could do a exact value, but now we have a status bar  where we don't know the starting value.  We only know that the value is between 0 and 500. And each time you click 'hit me' you lose some health.  The amount you lose each time is shown above the status bar.    Again there are several different ways to find the value. (like doing a decreased value by... scan), but  I'll only explain the easiest. "Unknown initial value", and decreased value.  Because you don't know the value it is right now, a exact value wont do any good, so choose as scantype  'Unknown initial value', again, the value type is 4-bytes. (most windows apps use 4-bytes)  click first scan and wait till it's done.    When it is done click 'hit me'. You'll lose some of your health. (the amount you lost shows for a few  seconds and then disappears, but you don't need that)  Now go to Cheat Engine, and choose 'Decreased Value' and click 'Next Scan'  When that scan is done, click hit me again, and repeat the above till you only find a few.    We know the value is between 0 and 500, so pick the one that is most likely the address we need, and add  it to the list.  Now change the health to 5000, to proceed to the next step.

Solution

Information we got from the hint:

The target is integer, initialized by unknown value
Value is between 0 and 500
‘Hit me’ will decrease the Health by certain value, which will be shown
objective is to change the value to 5000

The value is represented by progress bar, we don’t know the exact value. We have no choice here, set the type to ‘Unknown initial value’. Make the value type as 4 byte.

Click ‘First Scan’ and wait until the interface goes back to normal like nothing happened. It should go back to 4 byte.

Now got back to the tutorial application and click ‘Hit me’. You should see a thing says “-(Random number”. In my case, it is -8.

As you can see, I got my HP lost by 8. Go to Cheat Engine, change the value type to “Decreased value by…”. Then put the number of HP you lost. Press Next scan.

Now I see the result and found 11 entries on my list. Let’s see, I get many 0, a frequently changing value (see the red one), a memory with value 1, one with value 440, and the rest with value 400.000+. The 0 and 1 is not likely be the answer. The changing address is also, we don’t even change the value again. The huge value is also not the possible answer, the value should be on range 0 to 500. Then we are left with only one option, 440.

Copy it to our working area. Let’s change the value to at least 5000. Go back to Cheat Engine Tutorial and you would see that the Next button is enabled now. The progress bar should also get full. If it didn’t, you did it wrong. Once you click the Next button, you finish this stage

Cheat Engine Tutorial: Tutorial v3 – Stage 1

Posted: 04 Aug 2013 10:26 AM PDT

In this article I use:

Windows 8 64-bit
Cheat Engine 6.3
Cheat Engine Tutorial v3

Prerequisite

At least you understand the basic layout of Cheat Engine. You should know how to load a running process to Cheat Engine. If you don’t, please refer back to the introduction.

Open the Cheat Engine Tutorial v3

Password

Every stage can be accessed individually. To access this stage from Cheat Engine Tutorial’s main window, enter 090453 to password line edit.

Hint

Dark Byte (Cheat Engine creator) wrote this as hint:

Now that you have opened the tutorial with Cheat Engine lets get on with the next step. You see at the bottom of this window the text Health: xxx Each time you click 'Hit me' your health gets decreased. To get to the next step you have to find this value and change it to 1000 To find the value there are different ways, but I'll tell you about the easiest, 'Exact Value': First make sure value type is set to at least 2 bytes or 4 bytes, 1 byte will also work, but you'll run into an easy to fix problem when you've found the address and want to change it. The 8-byte may perhaps works if the bytes after the address are 0, but I wouldn't take the bet. Single, double, and the other scans just don't work, because they store the value in a different way. When the value type is set correctly, make sure the scantype is set to 'Exact Value' Then fill in the number your health is in the value box. And click 'First Scan' After a while (if you have a extremely slow pc) the scan is done and the results are shown in the list on the left If you find more than 1 address and you don't know for sure which address it is, click 'Hit me', fill in the new health value into the value box, and click 'Next Scan' repeat this until you're sure you've found it. (that includes that there's only 1 address in the list.....) Now double click the address in the list on the left. This makes the address pop-up in the list at the bottom, showing you the current value. Double click the value, (or select it and press enter), and change the value to 1000. If everything went ok the next button should become enabled, and you're ready for the next step. Note: If you did anything wrong while scanning, click "New Scan" and repeat the scanning again. Also, try playing around with the value and click 'hit me'

Solution

Information we got from the hint:

The target is integer, initialized with 100
‘Hit me’ will decrease the Health
objective is to change the value to 1000

It is also stated that the value can 2-bytes or 4-bytes (Dark Byte said we should set the scan type to at least 2-bytes. Let’s assume the value is stored on 4-byte data value. Cheat Engine uses this by default. Type in 100 in the Value box, make sure Hex is unchecked. Click first scan.

Look at the result (left). Find the table that shows “Address” and “Value”. An address is where the data is stored and the value is what the data is. The actual value.

Now go to the tutorial and click “Hit me”. Now the health should go down. In my case, I got it to 96. Let’s refer this value as myHP. Go back to Cheat Engine. Type the value of myHP you got then press next scan. Alternatively, if the number of entries is not much, search the entries which the Value is the value of myHP and the Previous say 100 (our previous value before we click “Hit me”)

For this tutorial, there should be only one value. Now, my address is 011E0920, which might be different with your result. It will not be same every time, so if you don’t see the same value I got, don’t panic!. Now, double click the address so the entry got copied to our working area.

See the “Next” button on Cheat Engine Tutorial? It is greyed and blocked so we can’t go to the next tutorial. Don’t worry, we will make it clickable now. Remember our objective? Set the value of myHP to 1000. To do so, double click on myHP entry on working area, right to the value.

A new window will appear, like this.

Change 96 or whatever value you got to 1000, like this:

Go back to Cheat Engine Tutorial and see that the next button is enabled now. Click the Next button and you finished the First stage.

Proyek Teknologi

Senin, 05 Agustus 2013